REVIEW 2.2 SCIENCE 5.1-5.5

BENCHMARK REVIEW 2

Multiple Choice

What is friction?

• Force that pulls down the object to the ground

• Force that opposes the motion

• The push and pull

• The ability to do work

Multiple Choice

Which surface has more friction?

• Ice

• Tiled floor

• Carpeted floor

• wet wooden floor

Multiple Choice

Which is true about Kinetic Energy?

• Kinetic energy is the energy of all moving objects

• Kinetic energy is the stored energy

• It is the energy from the sun

• it is the energy that pulls down al the objects to the ground

Multiple Choice

When two objects rub together it can create thermal energy because of its friction.

• True

• False

Multiple Choice

What will happen if you roll the ball in a floor with more friction?

• It will go farther

• The ball will bounce

• The ball will not go farther

• the ball will roll in a zigzag way

Multiple Choice

Image is an example of a simple circuit. What will happen if a section of the wire is cut, what will happen?

• The electrons will still flow.

• The electrons will not flow.

• The bulb will still light up.

• The switch will still function.

Multiple Choice

What materials will be used if one part of the wire was cut?

• Insulators such as rubber paper or cloth

• Conductors such as metal, paper clip, aluminum foil

Multiple Choice

The ball is rolling down the hill it shows kinetic energy and_______________.

• Radiant energy

• Mechanical energy

• Thermal Energy

• Electrical Energy

Multiple Choice

What is Potential Energy?

• energy of moving objects

• it is a stored energy

• it can be associated with mechanical energy

Multiple Select

ENERGY ____________.

Select all the correct answers.

• can be destroyed and created

• is the ability to do work

• cannot be created nor destroyed

• can be transformed to a different for example from radiant to Electrical

Drag and Drop

Constant​

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​

Independent Variable​

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​ Dependent Variable​

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Drag these tiles and drop them in the correct blank above

remains the same all throughout the experiment

The element of an experiment that you change

The result or the effect of the changes made

Multiple Choice

QUESTION FOR THE EXPERIMENT:

Does temperature affect the rate of plant growth?

What is the best hypothesis for this question?

• If temperature is related to the rate of plant growth, then changing the temperature will change the rate of plant growth.

• If the growth of the plant is affected by the rain, then they should be put outside.

• If the temperature affect the plant growth, then we should plant more.

Multiple Choice

A group of students wondered if the type of fertilizer will affect the growth of the plant.

What is the independent variable in their experiment?

• The group of students

• The type of fertilizer

• The plant

• No Independent Variable present

Multiple Choice

The student wanted to observe if what are the different types of bird will pass by in their house at 1:00 pm.

What will be the constant in the experiment?

• The type of birds

• The Time

• The weather

Multiple Choice

Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.

• distance traveled by the ball

• height of the ramp

• mass of the ball

• weight of the ball

ENERGY TRANSFORMATION

ENERGY CAN BE TRANSFORMED FROM ONE FORM TO ANOTHER EXAMPLE:

Electrical Energy to Mechanical Energy (Electric fan)
Mechanical Energy to Electrical Energy (Hydro power plant)

Multiple Choice

What energy transformation is present in the picture?

• Electrical to Mechanical

• Mechanical to Electrical

• Radiant to Electrical

• Electrical to Radiant

Electromagnets

Temporary magnet formed when electricity flows through coiled wire.

The more coil you wrap in the metal rod the more powerful the electromagnet.

Multiple Choice

Which is true about electromagnets?

• The lesser coil wrapped in the metal rod the powerful electromagnets.

• The more coil wrapped in the metal rod the powerful electromagnets.

• The number of coils will determine the number of object will be attracted

• The battery will attract the objects

Multiple Select

Select all the sentences that describes static electricity.

• socks sticking on clothes after drying

• bolt of lightning

• electricity form the outlet

• sticking hair in a balloon after rubbing

Multiple Choice

Which is true about percussion instruments such as drums, xylophone and gongs?

• They produce sound by creating impact or striking

• The produce sounds by strumming

• They produce sounds by blowing air

Multiple Choice

This is the length between crest to crest and trough to trough.

• wavelenth

• crest

• compression

• frequency

Multiple Choice

This is the bunch of molecules in a compression wave.

• crest

• compression

• rarefaction

• trough

Multiple Choice

What is shown in the picture?

• reflection

• refraction

• opaque

Multiple Choice

Visible light spectrum has different colors with different level of energy.

• True

• False

Multiple Choice

A bowl of salad is an example of a mixture.

• False

• True

Multiple Choice

A salt solution is an example of a mixture.

• False it is an example of a solution you cannot see the physical properties of the ingredents.

• True because you can separate the ingredients by your hands

Multiple Choice

When the temperature increases what will happen to the state of matter?

• The state will change form one phase to another. The process will be: solid will turn to liquid and liquid will turn to gas

• The state will remain the same, temperature is not a factor that will affect the state of matter.

• The state will change from gas it will become liquid and solid.